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Finding the Third Proportional to 3,381.75 and 6,459.75

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Solution

The third proportional to 3,381.75 and 6,459.75 is: 12,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.75 : 6,459.75 = 6,459.75 : x
  2. Step 2: Convert to fraction form
    3,381.75/6,459.75 = 6,459.75/x
  3. Step 3: Cross multiply
    3,381.75x = 6,459.75 × 6,459.75
  4. Step 4: Simplify right side
    3,381.75x = 41,728,370.06
  5. Step 5: Solve for x
    x = 41,728,370.06/3,381.75
  6. Step 6: Final answer
    x = 12,339.28

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.